Medial Amygdala Arginine Vasopressin Neurons Regulate Innate Aversion to Cat Odors in Male Mice
Aversion to environmental cues of predators is an integral part of defensive behaviors in many prey animals. It enhances their survival and probability of future reproduction. At the same time, animals cannot be maximally defended because imperatives of defense usually trade-off with behaviors requi...
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Veröffentlicht in: | Neuroendocrinology 2021-06, Vol.111 (6), p.505-520 |
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description | Aversion to environmental cues of predators is an integral part of defensive behaviors in many prey animals. It enhances their survival and probability of future reproduction. At the same time, animals cannot be maximally defended because imperatives of defense usually trade-off with behaviors required for sexual reproduction like display of dominance and production of sexual pheromones. Here, we approach this trade-off through the lens of arginine vasopressin (AVP) neurons within the posterodorsal medial amygdala (MePD) of mice. This neuronal population is known to be involved in sexual behaviors like approach to sexually salient cues. We show that chemogenetic partial ablation of this neuronal population increases aversion to predator odors. Moreover, overexpression of AVP within this population is sufficient to reduce aversion to predator odors. The loss of fear of the predator odor occurs in parallel with increased recruitment of AVP neurons within the MePD. These observations suggest that AVP neurons in the medial aspect of the extended amygdala are a proximate locus for the reduction in innate fear during life stages dominated by reproductive efforts. |
doi_str_mv | 10.1159/000508862 |
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It enhances their survival and probability of future reproduction. At the same time, animals cannot be maximally defended because imperatives of defense usually trade-off with behaviors required for sexual reproduction like display of dominance and production of sexual pheromones. Here, we approach this trade-off through the lens of arginine vasopressin (AVP) neurons within the posterodorsal medial amygdala (MePD) of mice. This neuronal population is known to be involved in sexual behaviors like approach to sexually salient cues. We show that chemogenetic partial ablation of this neuronal population increases aversion to predator odors. Moreover, overexpression of AVP within this population is sufficient to reduce aversion to predator odors. The loss of fear of the predator odor occurs in parallel with increased recruitment of AVP neurons within the MePD. These observations suggest that AVP neurons in the medial aspect of the extended amygdala are a proximate locus for the reduction in innate fear during life stages dominated by reproductive efforts.</description><subject>Animal behavior</subject><subject>Animals</subject><subject>Arginine</subject><subject>Arginine Vasopressin - metabolism</subject><subject>Corticomedial Nuclear Complex - metabolism</subject><subject>Defense industry</subject><subject>Dependovirus</subject><subject>Fear - physiology</subject><subject>Food Chain</subject><subject>Genetic Vectors</subject><subject>Male</subject><subject>Mediation</subject><subject>Mice</subject><subject>Mice, Inbred C57BL</subject><subject>Mice, Transgenic</subject><subject>Neurons</subject><subject>Neurons - metabolism</subject><subject>Olfactory Perception - physiology</subject><subject>Pheromones</subject><subject>Research Article</subject><subject>Sex</subject><subject>Sexual Behavior, Animal - physiology</subject><subject>Vasopressin</subject><issn>0028-3835</issn><issn>1423-0194</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0UFr2zAYBmAxVtas3WH3MQS9bAe3kiXL9tGErg00KbTbruKzJBtttpRK9lj__RTSBQpBhw-k5xUSL0IfKbmktKivCCEFqSqRv0ELynOWEVrzt2hBSF5lrGLFKXof46_E8prl79ApyzkvGSsXSK6NtjDgZnzuNQyAm9BbZ53BPyH6bTAxWoc3Zg7eRfxg-nmAyeCVc7vR_DEhWu_w5PESJnyvfYg4BdYwGLy2ypyjkw6GaD68zDP049v19-Vtdnd_s1o2d5kqmJiyVisCuqAAJcu1At4K3lW1YoS2LScF6JaKVhNKWUUFUy0TBEgpoCsIV5SzM_Rlf-82-KfZxEmONiozDOCMn6PMORFFKbigiV7saZ8eKa3r_BRA7bhsSiJ4zVlZJnV5RKWlzWiVd6azaf9V4OurQDKT-Tv1MMcoV48PR60KPsZgOrkNdoTwLCmRu0rlodJkP7_8bG5How_yf4cJfNqD3xB6Ew7gkL84ery53uyF3OqO_QNg-60J</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Tong, Wen Han</creator><creator>Abdulai-Saiku, Samira</creator><creator>Vyas, Ajai</creator><general>S. Karger AG</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>7X8</scope></search><sort><creationdate>20210601</creationdate><title>Medial Amygdala Arginine Vasopressin Neurons Regulate Innate Aversion to Cat Odors in Male Mice</title><author>Tong, Wen Han ; Abdulai-Saiku, Samira ; Vyas, Ajai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c536t-bdc0ad51aa732dca4b64f89c301bb405adb16bd01138163cb360a076af504c143</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Animal behavior</topic><topic>Animals</topic><topic>Arginine</topic><topic>Arginine Vasopressin - metabolism</topic><topic>Corticomedial Nuclear Complex - metabolism</topic><topic>Defense industry</topic><topic>Dependovirus</topic><topic>Fear - physiology</topic><topic>Food Chain</topic><topic>Genetic Vectors</topic><topic>Male</topic><topic>Mediation</topic><topic>Mice</topic><topic>Mice, Inbred C57BL</topic><topic>Mice, Transgenic</topic><topic>Neurons</topic><topic>Neurons - metabolism</topic><topic>Olfactory Perception - physiology</topic><topic>Pheromones</topic><topic>Research Article</topic><topic>Sex</topic><topic>Sexual Behavior, Animal - physiology</topic><topic>Vasopressin</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tong, Wen Han</creatorcontrib><creatorcontrib>Abdulai-Saiku, Samira</creatorcontrib><creatorcontrib>Vyas, Ajai</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>MEDLINE - Academic</collection><jtitle>Neuroendocrinology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tong, Wen Han</au><au>Abdulai-Saiku, Samira</au><au>Vyas, Ajai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Medial Amygdala Arginine Vasopressin Neurons Regulate Innate Aversion to Cat Odors in Male Mice</atitle><jtitle>Neuroendocrinology</jtitle><addtitle>Neuroendocrinology</addtitle><date>2021-06-01</date><risdate>2021</risdate><volume>111</volume><issue>6</issue><spage>505</spage><epage>520</epage><pages>505-520</pages><issn>0028-3835</issn><eissn>1423-0194</eissn><abstract>Aversion to environmental cues of predators is an integral part of defensive behaviors in many prey animals. 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subjects | Animal behavior Animals Arginine Arginine Vasopressin - metabolism Corticomedial Nuclear Complex - metabolism Defense industry Dependovirus Fear - physiology Food Chain Genetic Vectors Male Mediation Mice Mice, Inbred C57BL Mice, Transgenic Neurons Neurons - metabolism Olfactory Perception - physiology Pheromones Research Article Sex Sexual Behavior, Animal - physiology Vasopressin |
title | Medial Amygdala Arginine Vasopressin Neurons Regulate Innate Aversion to Cat Odors in Male Mice |
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